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03-18-2010, 09:42 AM
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#1 | |
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AF Regular
Join Date: Jul 2007
Location: County, New York
Posts: 210
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overheating
i changed the valve cover gaskets on a pontiac 455. now the car seems to be running hotter than it was before i changed them. is it possible they're connected?
coolant level is fine and waterpump is new. i haven't checked thermostat and radiator could use replacing. with that being known, it wasn't doing this till i changed the gaskets. before changeing the gaskets, it would be around here. after changeing the gaskets, it sits a little higher on the 210. i'll try to get a picture of it like that.  Last edited by moliva1568; 03-18-2010 at 04:15 PM. |
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03-18-2010, 09:08 PM
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#2 | |
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Nothing scares me anymore
 
Join Date: Dec 2003
Location: City of Light
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Re: overheating
It's possible you tapped the temperature sender, which is located on the intake manifold, I think.
The sender and gauge function using electrical resistance, so, if the electrical connection is a bit dirty, or the sender is inaccurate, the gauge can show an erroneous reading. Try cleaning the electrical contacts where the wire meets the temp sender. |
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03-18-2010, 10:14 PM
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#3 | |
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AF Regular
Thread starter
Join Date: Jul 2007
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Re: overheating
<p>thanks, i'll check that out. driving home tonight, it barely came off the green and stayed cold. the oil gauge was weird too. it was high during the drive. it wasn't doing that earlier.
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03-20-2010, 07:43 PM
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#4 | |
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AF Enthusiast
Join Date: Oct 2005
Location: St.Louis, Missouri
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Re: overheating
You might have pinched a wire somewhere, double check everything around the valve covers.
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03-20-2010, 07:48 PM
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#5 | ||
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SHO No Mo
Join Date: Jun 2004
Location: Cedar Rapids, Iowa
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Re: overheating
Quote:
Also, did you change the water pump at the same time or have the cooling system open during while changing the gaskets? If so you might have had an air pocket in the cooling system causing the abnormal coolant temperature readings. -Rod |
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03-21-2010, 03:55 PM
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#6 | |
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AF Regular
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Join Date: Jul 2007
Location: County, New York
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Re: overheating
it wasn't doing it earlier that same day, after i had changed the gaskets and driven it for the first time. the oil hadn't been changed but i had recently added a quart of new oil. the quart of oil was added before the first drive.
as of right now, it starts off high but after driving for a good 15-20 minutes, it falls right in the middle. |
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